<template>

<div class="app-container">

<h2 style="text-align: center;">发布新课程</h2>

<el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
  <el-step title="填写课程基本信息"/>
  <el-step title="创建课程大纲"/>
  <el-step title="发布课程"/>
</el-steps>

<div class="ccInfo">
  <img :src="coursePublish.cover">
  <div class="main">
    <h2>{{ coursePublish.title }}</h2>
    <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
    <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
    <p>课程讲师：{{ coursePublish.teacherName }}</p>
    <h3 class="red">￥{{ coursePublish.price }}</h3>
  </div>
</div>

<div>
  <el-button @click="previous">返回修改</el-button>
  <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
</div>
</div>
</template>

<script>
import course from '@/api/edu/course'
export default {
    data() {
    return {
      saveBtnDisabled: false, // 保存按钮是否禁用
      courseId:'',
      coursePublish:{}
    }
  },
   created(){
    //获取路由课程id值
    if(this.$route.params && this.$route.params.id) {
        this.courseId = this.$route.params.id
        //调用接口方法根据课程id查询
        this.getCoursePublishId()
        }
   },
  methods:{

    //返回修改
    previous(){
      this.$router.push({path:'/course/chapter/'+this.courseId})
    },
    //根据课程id查询
    getCoursePublishId() {
    course.getPublishCourseInfo(this.courseId)
    .then(response => {
        this.coursePublish = response.data.coursePublishVo
    })
    },
    publish() {
      course.publishCourse(this.courseId)
        .then(response => {
          //提示
          this.$message({
              type: 'success',
              message: '课程发布成功!'
          });
          //跳转课程列表页面
          this.$router.push({ path: '/course/list' })
        })
      
    }

  }


}
</script>

<style scoped>

.ccInfo {
    background: #f5f5f5;
    padding: 20px;
    overflow: hidden;
    border: 1px dashed #DDD;
    margin-bottom: 40px;
    position: relative;
}
.ccInfo img {
    background: #d6d6d6;
    width: 500px;
    height: 278px;
    display: block;
    float: left;
    border: none;
}
.ccInfo .main {
    margin-left: 520px;
}

.ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
}
.ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
}

.ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
}
.ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
}
</style>